CN105848544A

CN105848544A - Cleaning device

Info

Publication number: CN105848544A
Application number: CN201480070651.6A
Authority: CN
Inventors: 金贤周; 李相元; 高东锡; 朴珍亨; 徐应烈; 吴炫峻; 李周容; 崔宰昊; 许光授
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2013-12-24
Filing date: 2014-12-16
Publication date: 2016-08-10
Anticipated expiration: 2034-12-16
Also published as: EP3086699A1; AU2014370740B2; CN105848544B; EP3086699A4; AU2014370740A1; KR102171271B1; EP3086699B1; KR20150075008A

Abstract

A cleaning device includes an improved structure in which cleaning performance can be improved. The cleaning device includes an inhalation unit to generate inhalation force to inhale air into a main body, wherein the inhalation unit includes: an impeller that is rotatable; an impeller cover having an inlet damper formed therein; and a return channel coupled to the impeller cover so that the impeller can be accommodated in the return channel, wherein the return channel includes: an inner frame; and an outer frame placed at an outer side of the inner frame so as to be spaced apart from the inner frame, and a plurality of wings are disposed between the inner frame and the outer frame.

Description

Cleaning equipment

Technical field

Embodiments of the present invention relate to cleaning equipment, can improve clearly more particularly, to having The structure improved cleaning equipment of clean performance.

Background technology

In general, cleaning equipment be on surface to be cleaned suck air (including dirt), Make dirt separate with air, trapped dirt and the air of cleaning is discharged into the outside of main body Equipment.

These cleaning equipment are divided into: cartridge type cleaning equipment, wherein main body and inlet nozzle divide each other From and use predetermined pipe to connect；And vertical type cleaning equipment, wherein inlet nozzle and master Body is provided as monomer according to the shape of cleaning equipment.

Robotic cleaning device has got most of the attention, and it is (all by Foreign body aspiration from floor Such as dust) automated cleaning region to be cleaned, move to hold in region to be cleaned voluntarily simultaneously Row clean up task, and without user operation.

Cleaning equipment can include impeller, bubbler and de-cyclone, and wherein, de-cyclone is to use In the element determining inhalation power.

The air being drawn in main body passes impeller, expansion in order along the flow path of bended several times Dissipate device and de-cyclone.In this program, the pressure loss of air increases, and impeller with Distance between bubbler is designed to little, to supplement the inhalation power caused by the pressure loss Minimizing.But, the distance between impeller and bubbler is the least, owing to making an uproar occurs in pressure oscillation The probability of sound is the highest.In order to prevent the appearance of noise, the size of impeller and be connected to impeller The size of motor may increase.In this case, cleaning equipment size also increase, this with The recent market trend of compact products does not corresponds.

Summary of the invention

Technical problem

It is an aspect of the present invention to provide to have and can improve the structure improved cleaning of inhalation power and set Standby.

Another aspect of the present invention is to provide and manufactures cleaning equipment with having Miniaturizable and densification Structure improved cleaning equipment.

It is a further aspect of the present invention to provide and there is the structure improved cleaning that can prevent noise Equipment.

It is another aspect of the present invention to provide to have and may be easily manufactured the structure improved of cleaning equipment Cleaning equipment.

The additional aspect of the present invention will illustrate in the description that follows, and retouch partially by this State and become apparent, or partly can the acquistion by the practice to the present invention.

Technical scheme

According to an aspect of the present invention, it is provided that a kind of cleaning equipment, this cleaning equipment includes sucking Unit, this suction unit is used for producing inhalation power to draw air in main body, wherein sucks Unit comprises the steps that the impeller that can rotate；Impeller guard shield, has and is formed in impeller guard shield Inlet baffle；And backward channel, being connected to impeller guard shield, to make impeller may be housed in return logical In road, wherein backward channel can include inner frame and outside framework, and wherein outside framework is placed on inside casing The outside of frame is with spaced apart with inner frame, and is provided with multiple between inner frame and outside framework Fin.

Backward channel can be directly coupled to impeller so that the air through impeller can be incorporated into return In passage.

Multiple fins can be formed relative to the axial direction of impeller.

Impeller can rotate in a first direction, and multiple fin can be contrary with first direction Formed relative to the axial direction of impeller in second direction.

Multiple fins can include curved surface.

Multiple fins can be spaced apart from each other predetermined gap and can form exhaust flow path, passes The air of impeller is moved by exhaust flow path, and wherein exhaust flow path comprises the steps that Entrance, is formed at the one end towards impeller in exhaust flow path；And outlet, the row of being formed at Go out the other end of flow path with spaced apart with entrance, and be incorporated into exhaust flow via entrance Air in path can be ejected into the outside sucking unit via outlet.

Impeller guard shield can include that the guide portion being connected to outside framework is to guide the air through impeller To entrance, and guide portion can have curved surface.

Guide portion can have curved surface, and curved surface is protruding towards the outside of impeller guard shield and has There is the radius of curvature of about 1mm or bigger.

Multiple fins comprise the steps that first surface, towards the outer surface of inner frame and include starting point； And second surface, face out the inner surface of framework including formed together with above-mentioned starting point into The starting point of mouth.

The straight line starting point of the starting point of first surface with second being connected can be relative to impeller Axial direction form the inclination of the angle between about 5 ° and 85 °.

In the section being perpendicular to cut in the horizontal direction of axial direction of impeller backward channel, One end towards impeller guard shield by one end towards impeller guard shield of first surface Yu second surface The straight line connected connects with by the one end towards impeller guard shield at the center of backward channel with first surface Angle, θ between the straight line connect can be between about 0 ° and 80 °.

The starting point of second surface extends more than the starting point of first surface towards impeller guard shield Far.

Multiple fins may also include and the starting point of first surface are connected with the starting point of second surface Connecting portion, and connecting portion can include at least one in curved surface and flat surfaces.

Connecting portion can include than in the starting point of first surface and the starting point of second surface more at least One is prolonged the summit projected farther towards impeller guard shield.

Sucking unit and may also include motor, motor is arranged in backward channel and has and is connected to The motor shaft of impeller is to provide the driving force for wheel rotor.

According to a further aspect in the invention, it is provided that a kind of cleaning equipment, this cleaning equipment includes inhaling Enter unit, suck unit and be used for producing inhalation power to draw air in main body, wherein suck Unit comprises the steps that rotating impeller；Impeller guard shield, has and is formed at entering in impeller guard shield Mouth baffle plate；And backward channel, it is connected to impeller guard shield and makes impeller may be housed in backward channel In, and backward channel is directly coupled to impeller and makes the air through impeller can be incorporated into return In passage, and backward channel be when can be separated from one another multiple unit be coupled to each other time formed.

Multiple unit can separated from one another be formed with the axial direction relative to impeller.

Multiple unit can be separated from one another in the horizontal direction of axial direction being perpendicular to impeller.

Backward channel comprises the steps that inner frame；Outside framework, is placed on the outside of inner frame with interior Frame space is opened；And multiple fin, it is placed between inner frame and outside framework, and multiple Unit can be separated from one another in the horizontal direction of axial direction being perpendicular to impeller.

Multiple fins can be formed relative to the axial direction of impeller, and can include bending table Face.

Backward channel may also include at least one and rotates prevention unit, and this rotation stops unit to make many Individual unit is coupled to each other.

At least one rotates and stops unit to may be formed at the inner side of backward channel to be spaced apart from each other.

Multiple unit comprise the steps that first module, are placed on the direction that the air through impeller moves Upstream side；And second unit, it is placed on the downstream in the direction that the air through impeller moves Side, and at least one rotate stop unit can include projection, this projection is arranged on first module Inner side with in second unit.

At least one rotates and stops unit to may also include fastening part, and it is single that this fastening part is arranged on first Another inner side in unit and second unit, and it is detachably coupled to projection.

According to another aspect of the invention, it is provided that a kind of cleaning equipment, this cleaning equipment includes inhaling Entering unit, this suction unit is used for producing inhalation power to draw air in main body, wherein inhales Enter unit and comprise the steps that rotating impeller；Impeller guard shield, has and is formed in impeller guard shield Inlet baffle；And backward channel, being connected to impeller guard shield, to make impeller may be housed in return logical In road, and backward channel is directly coupled to impeller and makes can be incorporated into through the air of impeller to return Return in passage, and axial with relative to impeller of multiple fin can be provided with on backward channel Direction is formed and.

Multiple fins can include curved surface.

Impeller can rotate in a first direction, and multiple fin can be contrary with first direction Formed relative to the axial direction of impeller on two directions.

Backward channel can include inner frame and outside framework, and wherein, outside framework is placed on inner frame Outside is with spaced apart with inner frame, and multiple fin may be provided between inner frame and outside framework.

The beneficial effect of the invention

The multiple fins tilted are become to be arranged in backward channel relative to the axial direction X-shaped of impeller In so that the curved shape of flow path can be alleviated, therefore can reduce the pressure loss of air, And the inhalation power of cleaning equipment can be improved.

Use the backward channel also functioning as bubbler so that the distance between backward channel and impeller Big than the distance between existing bubbler and impeller, therefore can reduce cleaning equipment due to pressure Fluctuation and the noise that produces.

Use and be disposed with the return becoming the multiple fins tilted relative to the axial direction X-shaped of impeller Passage so that the inhalation power of cleaning equipment can be improved and make the small-sized of cleaning equipment simultaneously Change can be achieved.

Multiple unit that can be separated from one another by connection form backward channel so that manufacture or a large amount of The easiness producing cleaning equipment can be improved.

Accompanying drawing explanation

The following description to embodiment gone out by conjunction with the accompanying drawings, the present invention these and/ Or other side will become clear from and it is more readily appreciated that in accompanying drawing:

Fig. 1 diagram is according to the outward appearance of the cleaning equipment of embodiment of the present invention；

Fig. 2 is the removed shape of shell of the second housing of the cleaning equipment shown in pictorial image 1 The plane graph of state；

Fig. 3 is cleaning first housing of equipment of pictorial image 1 and the shell of the second housing and dust The plane graph of the removed state of cylinder；

Fig. 4 is the axonometric chart sucking unit of the cleaning equipment of pictorial image 1；

Fig. 5 is the exploded perspective view sucking unit of the cleaning equipment of Fig. 1；

Fig. 6 is the top view of the part sucking unit of the cleaning equipment of pictorial image 1；

It is many that Fig. 7 diagram is arranged on cleaning at the backward channel sucked in unit of equipment of Fig. 1 Individual fin；

It is many that Fig. 8 diagram is arranged on cleaning at the backward channel sucked in unit of equipment of Fig. 1 Individual fin and at least one sub-fin；

Fig. 9 is the front view sucking unit of the cleaning equipment of pictorial image 1；

Figure 10 is the amplification view of the part sucking unit of the cleaning equipment of Fig. 1；

Figure 11 is facing upward of the first module of the backward channel sucked in unit of the cleaning equipment of Fig. 1 View；

Figure 12 is bowing of the second unit of the backward channel sucked in unit of the cleaning equipment of Fig. 1 View；

Figure 13 A and Figure 13 B is the backward channel sucked in unit of the cleaning equipment of pictorial image 1 First module and the sectional view of draw bail of second unit；

Figure 14 diagram includes the structure of the nose cone part sucked in unit of the cleaning equipment of Fig. 1；

Figure 15 diagram is according to the outward appearance of the cleaning equipment of another embodiment of the present invention；

Figure 16 is the sectional view of the main body of the cleaning equipment shown in Figure 15；

Figure 17 is the axonometric chart sucking unit of the cleaning equipment of diagram Figure 15；

Figure 18 is the exploded perspective view sucking unit of the cleaning equipment of Figure 15；

Figure 19 is the amplification stereogram of the part sucking unit of the cleaning equipment of Figure 15；

Figure 20 is the sectional view sucking unit of the cleaning equipment of Figure 15；

Figure 21 is the amplification view of the part sucking unit of the cleaning equipment of Figure 15；

Figure 22 is the amplification view of another part sucking unit of the cleaning equipment of Figure 15；

Figure 23 arrangement illustrated Figure 15 cleaning equipment inner frame and outside framework between multiple The part of fin；

Figure 24 A to Figure 24 P is the connection being schematically illustrated the multiple fins shown in Figure 23 The side view of the various shape in portion；

Figure 25 is the side view sucking unit of the cleaning equipment of Figure 15；

Figure 26 is in the direction updip identical with the rotation direction of the impeller of the cleaning equipment of Figure 15 The amplification view of oblique multiple fins；

Figure 27 is in the direction updip contrary with the rotation direction of the impeller of the cleaning equipment of Figure 15 The amplification view of oblique multiple fins；

Figure 28 is the cooling structure of the cleaning equipment of the Figure 15 according to first embodiment of the invention Axonometric chart；

Figure 29 is the cooling structure of the cleaning equipment of the Figure 15 according to second embodiment of the invention Axonometric chart；

Figure 30 is the sectional view of the cooling structure shown in Figure 29；

Figure 31 is the cooling structure of the cleaning equipment of the Figure 15 according to third embodiment of the invention Sectional view；

Figure 32 is the cooling structure of the cleaning equipment of the Figure 15 according to four embodiment of the invention Sectional view；

Figure 33 is the cooling structure of the cleaning equipment of the Figure 15 according to fifth embodiment of the invention Sectional view；

Figure 34 is the multiple wings in the cleaning equipment of the Figure 15 according to first embodiment of the invention The sectional view of the arrangement of sheet；

Figure 35 is Figure 34 partial sectional view in the horizontal direction；

Figure 36 is the multiple wings in the cleaning equipment of the Figure 15 according to second embodiment of the invention The sectional view of the arrangement of sheet；

Figure 37 is the multiple wings in the cleaning equipment of the Figure 15 according to third embodiment of the invention The sectional view of the arrangement of sheet；

Figure 38 is the section view sucking unit of the cleaning equipment according to a further embodiment of this invention Figure；

Figure 39 is the sectional view of the main body of the cleaning equipment shown in diagram Figure 38；

Figure 40 is the axonometric chart sucking unit of the cleaning equipment of Figure 38；

Figure 41 is the exploded perspective view sucking unit of the cleaning equipment of Figure 38；

Figure 42 is the amplification stereogram of the part sucking unit of the cleaning equipment of Figure 38；

Figure 43 is the sectional view sucking unit of the cleaning equipment of Figure 38；

Figure 44 is the amplification view of the part sucking unit of the cleaning equipment of Figure 38；

Figure 45 is the amplification view of the part of multiple fins of the cleaning equipment of Figure 38；

Figure 46 is such diagram, its illustrate according to embodiment of the present invention, by first surface The straight line that is connected with the starting point of second surface of starting point relative to the inclining of axial direction of impeller Relation between the inhalation power of oblique angle and cleaning equipment；And

Figure 47 is such diagram, its illustrate according to embodiment of the present invention, be perpendicular to leaf Cut in the section of backward channel in the horizontal direction of the axial direction of wheel, by the one of first surface Hold the straight line being connected with one end of second surface and by the one end at the center of backward channel Yu first Relation between angle and the inhalation power of cleaning equipment that the straight line connected is formed.

Detailed description of the invention

Reference will be made in detail now embodiments of the present invention, its example illustrates in the accompanying drawings, entirely Reference identical in literary composition refers to identical element.

Based on accompanying drawing limit term used herein, such as " front end ", " rear end ", " top ", " bottom ", " top " and " bottom ", and the shape of each element and position do not limit by this term System.

Fig. 1 diagram is according to the outward appearance of the cleaning equipment of embodiment of the present invention.

As shown in fig. 1, cleaning equipment can include robotic cleaning device 1000.Robot is clear Clean equipment 1000 can include the main body constituting outward appearance, and at least one of the outward appearance of composition main body The housing 300 divided.

Housing 300 can include the first housing 400 and the shape being formed at the front of the second housing 500 Become the second housing 500 at the rear of the first housing 400.At the first housing 400 and the second shell Connecting elements 600 can be placed with by the first housing 400 and the second housing 500 between body 500 Connect.

The collecting unit of dust 530 being configured to store dust can be connected to the second housing 500.Dust list Unit 530 can include providing driving force with suck (or take in) dust suction unit 100 (or Take in unit), and the dust of suction is stored in dust-collecting cylinder 510 therein.

Can be provided with grip part 511 in dust-collecting cylinder 510, grip part 511 is arranged to depression So that user can grip dust-collecting cylinder 510.User can grip grip part 511, rotates dust-collecting cylinder 510, and dust-collecting cylinder 510 is separated with the second housing 500.User can be by by dust-collecting cylinder 510 separate the dust of the accumulation removed in dust-collecting cylinder 510 with the second housing 500.Second The sidepiece of housing 500 can be provided with driver element to drive main body.Driver element can include for main The driving wheel 540 that body moves above it, and it is arranged to rotating to minimize in main body The roller (not shown) of the load produced time mobile.Driving wheel 540 can be connected to the second housing 500 Both sides.

The brush unit being configured to clean the dust on floor can be provided with at the first housing 400 (not shown).Can couple in the front portion of the first housing 400 and have buffer 700 to alleviate at machine People cleans when equipment 1000 moves due to touching between robotic cleaning device 1000 and wall surface The noise hit and produce and vibrations.Additionally, buffer 700 can couple single shock absorption Component 710.

Entrance block sensor 720 can be set to highlight from the top surface of the first housing 400.Enter Mouth block sensor 720 can prevent robotic cleaning device 1000 from entering by detection infrared ray Predetermined portions.Entrance block sensor 720 may be provided at the both sides of the first housing 400.

Fig. 2 is the removed shape of shell of the second housing of the cleaning equipment shown in pictorial image 1 The plane graph of state, and Fig. 3 is cleaning the first housing of equipment and second shell of pictorial image 1 The shell of body and the plane graph of the removed state of dust-collecting cylinder.

As shown in Figures 2 and 3, the inner side of the second housing 500 can couple have for supply drive The power supply unit 550 of the electric power of dynamic main body.Power supply unit 550 can include battery (not shown), Mainboard 551, and be placed on the upside of mainboard 551 and show robotic cleaning device 1000 The display part (not shown) of state.In one embodiment, power supply unit 550 can set It is set to be placed on the rear of collecting unit of dust 530.

Battery (not shown) can be set to chargeable accumulator, and when main body completes clearly When being connected to docking station (not shown) after clean operation, by providing from docking station (not shown) Electric power to battery (not shown) charge.

When removing dust-collecting cylinder 510 from the second housing 500, can be provided with and the air sucked is moved Move the aerator (not shown) in dust-collecting cylinder 510.Along with aerator (not shown) works, Dust can be accumulated in dust-collecting cylinder 510, and user can be by dust-collecting cylinder 510 and the second housing 500 Separate and can easily discharge dust.

Suction unit 100b can be placed with in the inner side sucking unit housings (not shown).Suck Unit 100b can be connected to the side of dust-collecting cylinder 510.According to the embodiment of the present invention, drive Wheel 540 may be provided at dust-collecting cylinder 510 and sucks the side of unit 100b.That is, driving wheel 540 The first driving wheel 541 and the second driving wheel 542 can be included.First driving wheel 541 may be provided at Suck the side of unit 100b, and the second driving wheel 542 may be provided at the side of dust-collecting cylinder 510.

Therefore, can arrange in the horizontal direction of main body dust-collecting cylinder 510, suck unit 100b and Driving wheel 540.I.e., in one embodiment, dust-collecting cylinder 510, suck unit 100b and Driving wheel 540 can be generally disposed on straight line.

It is provided below the detailed description sucking unit 100b.

Fig. 4 is the axonometric chart sucking unit of the cleaning equipment of pictorial image 1, and Fig. 5 is figure The exploded perspective view sucking unit of the cleaning equipment of 1.Fig. 6 is the cleaning equipment of pictorial image 1 The top view of part sucking unit.

As shown in Fig. 4 to Fig. 6, robotic cleaning device 1000 can include sucking unit 100b To produce inhalation power, extraneous air is drawn in main body.

Suck unit 100b and can include impeller 110, impeller guard shield 120 and backward channel 130b.

Impeller guard shield 120 can be formed inlet baffle 121.

Rotating impeller 110 can be provided with in the inner side of impeller guard shield 120.

Impeller 110 is connected to motor 140 and rotates to draw air into suction unit 100b In.I.e., in one embodiment, impeller 110 is rotating impeller.

Impeller 110 can be configured to cfentrifugal blower, and it is at the axial direction X of impeller 110 Upper suction air and spray the air of suction in radial directions.

Impeller 110 can include the first plate the 111, second plate 112 and multiple rotating vanes 113.

First plate 111 and the second plate 112 can arrange facing with each other in vertical direction, Yi Ji Multiple rotating vanes 113 can be placed with between first plate 111 and the second plate 112.

Each top surface in multiple rotating vanes 113 can be connected to be placed on multiple rotary wings First plate 111 on the top of sheet 113, and each end table in multiple rotating vanes 113 Face can be connected to be placed on the second plate 112 of the bottom of multiple rotating vanes 113.Therefore, First plate the 111, second plate 112 and multiple rotating vanes 113 can rotate as global facility.

First plate 111 can be formed corresponding with the inlet baffle 121 of impeller guard shield 120 Perforate 114.Air through inlet baffle 121 can be incorporated into impeller 110 via perforate 114 In.

One end of motor shaft 141 can be fixed on the second plate 112.Therefore, the first plate 111, Second plate 112 and multiple rotating vanes 113 can be around motor shaft 141 unitary rotation.

The multiple rotary wings being spaced apart from each other it are positioned between the first plate 111 and the second plate 112 Sheet 113 can limit flow path 115.Through perforate 114 and be incorporated into the sky in impeller 110 Gas can move along flow path 115, and can be transferred to the row being formed on backward channel 130b Go out flow path 161.

Such as, impeller 110 can include three-dimensional (3D) impeller, this three-dimensional blades include main body and Blade, wherein main body has the shape being radially directed reduction.

Impeller 110 can be changed into various shape, and the shape of impeller 110 is not limited to above-mentioned showing Example.

Backward channel 130b will be drawn into, by impeller 110, the air sucked in unit 100b Kinetic energy is converted into pressure energy.Specifically, it is incorporated into the air in impeller 110 via perforate 114 Backward channel 130b it is transferred to after wheel rotation.Backward channel 130b collects through impeller 110 Air and the dynamic pressure of air is converted into the static pressure of air.Additionally, return logical Road 130b can prevent from producing noise at air through when sucking unit 100b.That is, backward channel 130b can function simultaneously as bubbler and de-cyclone.

Backward channel 130b can be connected to impeller guard shield 120 and can be formed and can be held by impeller 110 It is contained in impeller therein and accommodates space 134.

Backward channel 130b may be provided at the downside of impeller 110.

Backward channel 130b can be directly coupled to impeller 110 so that through the air of impeller 110 Can be introduced directly in backward channel 130b.

Backward channel 130b can be separable.That is, can be separated from one another multiple unit When 139a and 139b is coupled to each other, backward channel 130b can be formed.

Multiple unit 139a and 139b can be separated from one another with the axial direction relative to impeller 110 X-shaped becomes.Multiple unit 139a and 139b can be at the axial direction being perpendicular to impeller 110 In horizontal direction Y of X separated from one another.

Multiple unit 139a and 139b can include first module 139a and second unit 139b.

First module 139a can be placed in the upper of the direction G that the air through impeller 110 moves Trip side, and second unit 139b can be placed in the direction G that the air through impeller 110 moves Downstream.

First module 139a can be connected to impeller guard shield 120.Second unit 139b can be connected to The bottom of first module 139a is to separate with first module 139a.

First module 139a and second unit 139b can be coupled to each other, to form step betwixt.

The width of width comparable first module 139a of second unit 139b is bigger.That is, second Unit 139b than first module 139a in the level of the axial direction X being perpendicular to impeller 110 On the Y of direction outwardly farther.

Multiple unit 139a and 139b are not limited to first module 139a and second unit 139b.

Backward channel 130b can include inner frame 131, outside framework 132 and multiple fin 160.

Outside framework 132 can be placed on outside inner frame 131 along the outer periphery surface of inner frame 131 Side, impeller guard shield 120 can be connected to and may make up the impeller being accommodated therein by impeller 110 Accommodate space 134.

Backward channel 130b can be placed in the bottom of impeller 110, and the top at inner frame 131 The installation portion 133 being mounted thereon by impeller 110 can be formed on surface.That is, by impeller 110 The installation portion 133 being mounted thereon may be formed at the top table of the inner frame 131 of first module 139a On face.

Inner frame 131 and outside framework 132 can be formed as global facility.

Multiple fins 160 can be longitudinally disposed between inner frame 131 and outside framework 132.Tool Body ground, multiple fins 160 can be longitudinally formed at inside casing on the axial direction X of impeller 110 Between frame 131 and outside framework 132.Therefore, multiple fins 160 may make up at impeller 110 In elongated exhaust flow path 161 on axial direction X, and extra static state can be increased Pressure so that the intake performance sucking unit 100b can be improved.

Detailed description to multiple fins 160 is provided below.

Suck unit 100b and may also include printed circuit board (PCB) (PCB) 210 and bearing unit 200.

PCB 210 can be placed under backward channel 130b on the axial direction X of impeller 110 Portion.That is, PCB 210 can be placed in the bottom of backward channel 130b, thus adjacent to exhaust flow The outlet 135 in path 161.PCB 210 can be placed in the bottom of the inner side of backward channel 130b Not block exhaust flow path 161.

Bearing unit 200 can be placed on PCB 210 times on the axial direction X of impeller 110 Portion.Bearing unit 200 can support the motor 140 being arranged in backward channel 130b and return with being positioned at Return the PCB 210 of the bottom of passage 130b.

Bearing unit 200 can be connected to be formed at backward channel 130b by fixing component 960 In at least one projection 220.

The width of backward channel 130b can be more than the width of impeller 110.

Backward channel 130b in horizontal direction Y of axial direction X being perpendicular to impeller 110 The width (hereinafter referred to " the width W of backward channel ") striding across outside framework 132 can be big Leaf is striden across in impeller 110 in horizontal direction Y of axial direction X being perpendicular to impeller 110 The width (hereinafter referred to " the width Z of impeller ") of wheel 110.

The width Z of impeller 110 may correspond to the width W equal to or more than backward channel 130b About 70% and less than about 100%.Specifically, the diameter of the second plate 112 of impeller 110 can be right Ying Yu equals to or more than about the 70% of the diameter of the outside framework 132 of backward channel 130b and is less than about 100%.

When the width W of the width Z and backward channel 130b of impeller 110 is equal to each other, i.e. When the width Z of impeller 110 be the width W of backward channel 130b 100% time, through impeller The air of 110 is not easy the exhaust flow path 161 being transferred to be formed on backward channel 130b.

Separate between second plate 112 and the outside framework 132 of backward channel 130b of impeller 110 Degree can be between about 4mm and 8mm.This can be according to shape and the chi sucking unit 100b Very little modify in many ways.

Sucking unit 100b and may also include motor 140, motor 140 provides for wheel rotor 110 Driving force.

Motor 140 can include brushless direct-current (BLDC) motor, direct current (DC) motor and friendship Stream (AC) motor.

Motor 140 may be provided in backward channel 130b.Specifically, motor 140 may be provided at In inner frame 131.

Motor 140 can include motor shaft 141.One end of motor shaft 141 is connected to impeller 110 The second plate 112, and the other end of motor shaft 141 is connected to motor 140.

Motor shaft perforation 136 can be formed with so that electricity in the installation portion 133 of inner frame 131 One end of arbor 141 may be coupled to be placed on the of the impeller 110 on the top of inner frame 131 Two plates 112.

It is many that Fig. 7 diagram is arranged on cleaning at the backward channel sucked in unit of equipment of Fig. 1 Individual fin, and the return sucked in unit of Fig. 8 diagram cleaning equipment of being arranged on Fig. 1 leads to Multiple fins at road and at least one sub-fin.In figures 7 and 8, for convenience of description, Eliminate the outside framework 132 of backward channel 130b.Not shown reference is referring to figs. 1 to figure 6。

As shown in Figures 7 and 8, backward channel 130b can be provided with multiple fin 160.

As it was earlier mentioned, multiple fins 160 can on the axial direction X of impeller 110 longitudinally It is formed between inner frame 131 and outside framework 132.

It is axial that multiple fins 160 may be provided on backward channel 130b with relative to impeller 110 Direction X-shaped becomes.Specifically, multiple fins 160 may be provided at inner frame 131 and housing To form inclination between frame 132.

Multiple fins 160 can be spaced apart from each other, and may be provided at inner frame 131 and outside framework Between 132.The multiple fins 160 being spaced apart from each other can limit exhaust flow path 161, passes The air of impeller 110 is moved by exhaust flow path 161.

Exhaust flow path 161 can include entrance 137 and outlet 135.Exhaust flow path 161 Entrance 137 may be formed at the top towards impeller 110 in exhaust flow path 161 so that Air through impeller 110 can be incorporated in exhaust flow path 161 via entrance 137.Row The outlet 135 going out flow path 161 may be formed at the bottom in exhaust flow path 161 so that The air moved along exhaust flow path 161 can be injected into suction unit via outlet 135 The outside of 100b.

Separation degree between multiple fins 160 can be along with fin 160 be closer to exhaust flow road The outlet 135 in footpath 161 and increase.That is, along with fin 160 is closer to exhaust flow path 161 Outlet 135, the width in exhaust flow path 161 can increase.

Multiple fins 160 can include first surface 162 and second surface 163.

First surface 162 can be towards the outer surface of inner frame 131, and second surface 163 can face Inner surface to outside framework 132.First surface 162 can include being placed on first surface 162 Starting point M on top.Second surface 163 can include being placed on the top of second surface 163 Starting point N.Starting point N of second surface 163 can be with starting point M mono-of first surface 162 Act the entrance 137 constituting exhaust flow path 161.

Multiple fins 160 of the entrance 137 constituting exhaust flow path 161 can be relative to leaf Tilt under angle between the axial direction X about 0 ° and 90 ° of wheel 110.Specifically, row is constituted Go out the second surface 163 of multiple fins 160 of the entrance 137 of flow path 161 relative to leaf The angle, θ of the axial direction X of wheel 110 can be between about 0 ° and 90 °.

Alternately, multiple fins 160 of the entrance 137 in exhaust flow path 161 are constituted The tangent line angle, θ relative to the axial direction X of impeller 110 can be between about 0 ° and 90 °.

Multiple fins 160 of the outlet 135 constituting exhaust flow path 161 can be relative to leaf Tilt under angle between the axial direction X about 0 ° and 90 ° of wheel 110.Specifically, row is constituted Go out the second surface 163 of multiple fins 160 of the outlet 135 of flow path 161 relative to leaf The angle, θ of the axial direction X of wheel 110 can be between about 0 ° and 90 °.

Alternately, multiple fins 160 of the outlet 135 in exhaust flow path 161 are constituted The tangent line angle, θ relative to the axial direction X of impeller 110 can be between about 0 ° and 90 °.

The first surface 162 of multiple fins 160 can be connected to the outer surface of inner frame 131, and The second surface 163 of multiple fins 160 can be connected to the inner surface of outside framework 132.

Multiple fins 160 can include curved surface.

There are some relations in the direction that multiple fins 160 tilt with the rotation direction of impeller 110.Tool Body ground, when rotating on impeller 110 H in a first direction, multiple fins 160 can be with first In second direction I that direction H is contrary, the axial direction X relative to impeller 110 tilts.

The quantity of multiple fins 160 of backward channel 130b can be with multiple rotary wings of impeller 110 The quantity of sheet 113 has some relations.Specifically, when quantity and multiple rotation of multiple fins 160 When in the quantity of rotor sheet 113 one is divided by another, the value obtained by this division Can be unlimited decimal (infinite decimal).

The quantity of at least one in multiple fins 160 and multiple rotating vanes 113 can be strange Number.Such as, the quantity of multiple fins 160 of backward channel 130b can be equal to or be more than 13 and equal to or less than 23 odd number.But, on the quantity of multiple fins 160 is not limited to State example.

Backward channel 130b may also include at least one sub-fin 800.

At least one sub-fin 800 can be used for reducing air and may produce through when sucking unit 100b Raw noise.

At least one sub-fin 800 may be formed on exhaust flow path 161.

At least one sub-fin 800 may be provided between multiple fin 160, to have and to be constituted The gradient that the gradient of multiple fins 160 in exhaust flow path 161 is identical.

At least one sub-fin 800 may be formed at the entrance 137 in exhaust flow path 161 and goes out In at least one in mouth 135.

At least one sub-fin 800 can have than multiple wings on the axial direction X of impeller 110 The height that sheet 160 is lower.At least one sub-fin 800 can be at the axial direction X of impeller 110 On have equal to or less than multiple fins 160 about 50% height.

At least one sub-fin 800 can have different height on the axial direction X of impeller 110 Degree.Alternately, at least one sub-fin 800 can have on the axial direction X of impeller 110 There is identical height.

At least one sub-fin 800 can include first surface 162a and second surface 163a.

First surface 162a can be towards the outer surface of inner frame 131, and second surface 163a can Face out the inner surface of framework 132.

The first surface 162a of at least one sub-fin 800 can be connected to the appearance of inner frame 131 Face, and the second surface 163a of at least one sub-fin 800 can be connected to the interior of outside framework 132 Surface.

Alternately, the first surface 162a of at least one sub-fin 800 can be connected to inner frame The outer surface of 131, and the second surface 163a of at least one sub-fin 800 can be with outside framework 132 Inner surface spaced apart.

Alternately, the first surface 162a of at least one sub-fin 800 can be with inner frame 131 Outer surface spaced apart, and outside the second surface 163a of at least one sub-fin 800 can be connected to The inner surface of framework 132.

Fig. 9 is the front view sucking unit of the cleaning equipment of pictorial image 1.

As shown in Figure 9, multiple fins 160 can have on the axial direction X of impeller 110 Height equal to or more than suck unit 100b about 80%.Specifically, multiple fins 160 Second surface 163 can have single equal to or more than sucking on the axial direction X of impeller 110 The height of about the 80% of unit 100b.The height E sucking unit 100b refers at impeller guard shield 120 From the top of impeller guard shield 120 to backward channel under the state being coupled to each other with backward channel 130b The distance of the bottom of 130b.

The multiple fins 160 corresponding with the entrance 137 in exhaust flow path 161 can be at impeller 110 Axial direction X on be spaced apart from each other downwards pre-from the top of height E sucking unit 100b Fixed gap.Specifically, the second surface 163 of the entrance 137 in exhaust flow path 161 is constituted Starting point N can on the axial direction X of impeller 110 from suck unit 100b height E The downward spaced apart predetermined gap in top.

Multiple fins 160 corresponding to outlet 135 with exhaust flow path 161 can be at impeller 110 Axial direction X on be placed on the position identical with the bottom of the height E sucking unit 100b. Specifically, the second surface 163 of the outlet 135 constituting exhaust flow path 161 can be at impeller The position identical with the bottom of the height E sucking unit 100b it is placed on the axial direction X of 110 Put.

Figure 10 is putting of the part sucking unit of the cleaning equipment according to embodiment of the present invention Big sectional view.Not shown reference is referring to figs. 1 to Fig. 9.

As shown in Figure 10, starting point N in the second face 163 of multiple fins 160 is than many Starting point M of the first surface 162 of individual fin 160 upwardly extends towards impeller guard shield 120 Farther.That is, starting point N of second surface 163 can on the axial direction X of impeller 110 shape Become in the higher position of starting point M than the first face 162.

Starting point N of second surface 163 can be placed in and corresponds to or be more than 10% or be equal to Or the position of the height of the flow path 115 being formed on impeller 110 less than 70%.Formed The height of the flow path 115 on impeller 110 refer to the first plate 111 and the second plate 112 it Between distance.

Figure 11 is facing upward of the first module of the backward channel sucked in unit of the cleaning equipment of Fig. 1 View, and Figure 12 is the backward channel sucked in unit second single of cleaning equipment of Fig. 1 The top view of unit.Figure 13 A and Figure 13 B is in the suction unit of the cleaning equipment of pictorial image 1 The first module of backward channel and the sectional view of the draw bail of second unit.Not shown accompanying drawing Labelling is referring to figs. 1 to Figure 10.

As shown in Figure 11 to Figure 13 B, backward channel 130b may also include at least one and rotates Stop unit 900, rotate and stop unit 900 to make multiple unit 139a and 139b be coupled to each other.

At least one rotates and stops unit 900 to may be formed at the inner side of backward channel 130b with each other Spaced apart.At least one rotates and stops unit 900 can be spaced apart from each other predetermined gap.

At least one rotates and stops unit 900 can include projection 220 and fastening part 920.

Projection 220 may be provided at least one in first module 139a and second unit 139b Inner side.Specifically, projection 220 may be provided at first module 139a and second unit 139b In the inner frame 131 of at least one at.

Fastening part 920 may be provided at another in first module 139a and second unit 139b Inner side.Specifically, fastening part 920 may be provided at first module 139a and second unit 139b In another inner frame 131 on.Projection 220 can be detachably coupled to fastening part 920。

Projection 220 may be provided at the inner side of first module 139a.Projection 220 may be provided at first At the inner frame 131 of unit 139a, to be downwardly projected on the axial direction X of impeller 110. Projection 220 can be integrally formed with the inner frame 131 of first module 139a.

Projection 220 can have the shape of circular projection；But, embodiments of the present invention do not limit In this.

Projection 220 can be formed the rib 911 prominent towards the inner side of inner frame 131.Rib 911 may be connected to projection 220 so that the degree towards the inside protrusions of inner frame 131 can be along with Rib 911 reduces closer to downwardly direction on the axial direction X of impeller 110.Rib 911 Can be integrally formed with projection 220.

Fastening part 920 may be provided at the inner side of second unit 139b.Fastening part 920 may be provided at On the inner surface of the inner frame 131 of second unit 139b.

The projection 220 being formed in first module 139a can be connected to be arranged on second unit 139b On fastening part 920.In this case, the axial direction X at impeller 110 of rib 911 One end of faced downwards can couple and be fixed to the fastening being arranged in the inner surface of fastening part 920 Groove (not shown).

The inner frame 131 of first module 139a can include that extension 131a, extension 131a exist It is downwardly projected on the axial direction X of impeller 110.Extension 131a can have circular projection Shape, it has the diameter less than the diameter of inner frame 131.But, extension 131a Shape be not limited to circular projection.Extension 131a can be connected to the inner side of second unit 139b. Extension 131a can be connected to the inner side of the inner frame 131 of second unit 139b.

The projection 220 of first module 139a may be provided at extension 131a.

The projection 220 of first module 139a may make up a part of extension 131a.

The outer surface of extension 131a can be provided with the lateral process towards first module 139a At least one fixed part 930 gone out.That is, at least one fixed part 930 can be in first module 139a The most outwardly.In this case, at least one fixed part 930 does not blocks Exhaust flow path 161.

At least one fixed part 930 can be connected to be arranged on the inner frame 131 of second unit 139b On fixing groove 940.Fixing groove 940 may be provided at the inner frame 131 of second unit 139b On inner surface.At least one fixed part 930 can be detachably coupled to fixing groove 940.Gu The quantity of the quantity and at least one fixed part 930 of determining groove 940 can be identical.

Therefore, first module 139a and the second unit 139b of backward channel 130b can be by extremely A few rotation stops unit 900 to be coupled to each other separably.Additionally, by by least one Fixed part 930 couples with fixing groove 940, can more firmly perform first module 139a and second The connection of unit 139b.

Figure 14 diagram includes the structure of the nose cone part sucked in unit of the cleaning equipment of Fig. 1.Not The reference of diagram is referring to figs. 1 to Figure 13 B.

As shown in Figure 14, suck unit 100b and may also include nose cone part 950.Nose cone part 950 May be designed to fairshaped shape to have less aerodynamic drag.Nose cone part 950 may be provided at On second plate 112 of impeller 110, with opening in the first plate 111 being formed at impeller 110 The position in hole 114 is corresponding.What nose cone part 950 can be connected to motor shaft 141 is fixed on second One end on plate 112.Nose cone part 950 is arranged on the second plate 112 of impeller 110 so that The resistance of the air being incorporated in impeller 110 via perforate 114 can be reduced and suction can be improved The suction efficiency of unit 100b.

Figure 15 diagram is according to the outward appearance of the cleaning equipment of another embodiment of the present invention.

As shown in Figure 15, cleaning equipment 1 can include sucting 11 and main body 10, wherein, The sucting 11 inhalation power Foreign body aspiration by air, sucting 11 foreign matter collection sucked In main body 10.

Space between main body 10 with sucting 11 can be by being connected flexible pipe 12 and connecting tube 13 Connect so that the inhalation power produced in the main body 10 can be delivered to sucting 11, Yi Ji Connect and can be provided with handle 14 between flexible pipe 12 and connecting tube 13 so that user can with he/ Her hands gripping handle 14.

Connect flexible pipe 12 and be formed as tensile corrugated tube, and connect one end of flexible pipe 12 May be connected to main body 10, and the other end connecting flexible pipe 12 may be connected to handle 14 so that can Sucting 11 is moved freely in the constant radius centered by main body 10.Connecting tube 13 can shape Become and there is predetermined length.One end of connecting tube 13 may be connected to sucting 11, and connecting tube The other end of 13 may be connected to handle 14 so that the user in standing place can remove on floor Foreign body.

Figure 16 is the sectional view of the main body of the cleaning equipment shown in Figure 15, and Figure 17 is figure The axonometric chart sucking unit of the cleaning equipment of diagram 15.Figure 18 is the cleaning equipment of Figure 15 Suck unit exploded perspective view, and Figure 19 be Figure 15 cleaning equipment suck unit The amplification stereogram of part.Figure 20 is the sectional view sucking unit of the cleaning equipment of Figure 15, And Figure 21 is the amplification view of part sucking unit of cleaning equipment of Figure 15.

As shown in Figure 16 to Figure 21, connect flexible pipe 12 and may be connected to the front portion of main body 10, And the air sucked by sucting 11 can be along the inside connecting flexible pipe 12 and being transferred to main body 10. Exhaust portion 15 can be formed with so that foreign body has been arranged on master on the top at the rear portion of main body 10 Collecting unit of dust 20 filtered air in body 10 can be discharged into the outside of main body 10.Additionally, it is main The inside of body 10 is divided into dust storage chamber 10a, suction chamber 10b and code room (not shown), Wherein, dust storage chamber 10a is provided with collecting unit of dust 20, suction chamber 10b is provided with suction single Unit 100 and exhaust flow path 161, and code room (not shown) provide power supply code (not shown).

Collecting unit of dust 20 may be installed in dust storage chamber 10a, with via connecting flexible pipe 12 collection suction Enter the dust in dust storage chamber 10a.In the present embodiment, cyclone unit is centrifugal as using Power separates the unit of the foreign body in the air being drawn in collecting unit of dust 20.However, it is also possible to Use the disposal box collecting dust.Additionally, guard shield 21 can be hinged to the top of dust storage chamber 10a, Collecting unit of dust 20 can be separated with dust storage chamber 10a.

Cleaning equipment 1 can include sucking unit 100, sucks unit 100 and is used for producing inhalation power So that extraneous air is drawn in main body 10.Suck unit 100 and may be installed suction chamber 10b In.

Suck unit 100 and can include impeller 110, impeller guard shield 120 and backward channel 130.

Impeller guard shield 120 can be formed inlet baffle 121.Inlet baffle 121 can be via Connecting tube 17 is connected to the spray orifice 22 of collecting unit of dust 20, and can produce in collecting unit of dust 20 Raw inhalation power.

Impeller 110 can be configured to cfentrifugal blower, and it is on the axial direction of impeller 110 Suck air and spray the air of suction in radial directions.

Can the first plate 111 and the second plate 112 be arranged to facing with each other in the vertical direction, with And multiple rotating vanes 113 can be placed between the first plate 111 and the second plate 112.

Each top surface in multiple rotating vanes 113 can be connected to be placed on multiple rotary wings First plate 111 on the top of sheet 113, and each basal surface in multiple rotating vanes 113 Can be connected to be placed on the second plate 112 of the bottom of multiple rotating vanes 113.Therefore, first Plate the 111, second plate 112 and multiple rotating vanes 113 can rotate as global facility.

The multiple rotary wings being spaced apart from each other it are positioned between the first plate 111 and the second plate 112 Sheet 113 can limit flow path 115.Through perforate 114 and be incorporated into the sky in impeller 110 Gas can move along flow path 115, and can be transferred to the row being formed on backward channel 130 Go out flow path 161.

Impeller 110 can include 3D impeller, and this 3D impeller includes main body and blade, wherein main body There is the shape being radially directed reduction.

Impeller 110 can be changed on various shape, and the shape of impeller 110 is not limited to above-mentioned Example.

Backward channel 130 kinetic energy of the air introduced by impeller 110 can be converted into pressure energy, Impeller guard shield 120 can be connected to and may make up impeller appearance impeller 110 can being accommodated therein Receive space 134.

Backward channel 130 may be provided at the downside of impeller 110.

Backward channel 130 can be directly coupled to impeller 110 so that through the air of impeller 110 Can be introduced directly in backward channel 130.

Backward channel 130 can include inner frame 131 and outside framework 132.

Backward channel 130 can be placed in the bottom of impeller 110, and the top at inner frame 131 Installation portion 133 can be formed on surface, installation portion 133 is installed impeller 110.

Installation portion 133 can include jut 133a, and jut 133a is towards impeller guard shield 120 Project upwards.Jut 133a can be formed along the edge of installation portion 133.Impeller 110 can be installed To be placed on the inner side of jut 133a on installation portion 133.

Jut 133a can have curved surface.

Jut 133a can have curved surface, and it is protruding towards the outside of inner frame 131.

Outside framework 132 can be placed on outside inner frame 131 along the outer periphery surface of inner frame 131 Side, impeller guard shield 120 can be connected to and the impeller being accommodated therein by impeller 110 can be limited Accommodate space 134.

Inner frame 131 and outside framework 132 can be formed as global facility.

Backward channel 130 can be provided with multiple fin 160.

Multiple fins 160 can be longitudinally disposed at inner frame on the axial direction X of impeller 110 Between 131 and outside framework 132.Therefore, multiple fins 160 may make up the axle at impeller 110 Elongated exhaust flow path 161 is become so that suck the imbedibility of unit 100 on the X of direction Can be able to be improved.

It is axial that multiple fins 160 may be provided on backward channel 130 with relative to impeller 110 Direction X-shaped becomes.Specifically, multiple fins 160 may be provided at inner frame 131 and housing Between frame 132.

Multiple fins 160 can be spaced apart from each other and may be provided at inner frame 131 and outside framework Between 132.The multiple fins 160 being spaced apart from each other can limit exhaust flow path 161, passes The air of impeller 110 is moved by exhaust flow path 161.

Exhaust flow path 161 can include entrance 137 and outlet 135.Exhaust flow path 161 Entrance 137 may be formed at the top towards impeller 110 in exhaust flow path 161 so that Air through impeller 110 can be incorporated in exhaust flow path 161 via entrance 137.Row The outlet 135 going out flow path 161 is formed at the bottom in exhaust flow path 161 so that edge The air that exhaust flow path 161 is moved can be via outlet 135 towards sucking outside unit 100 Side is sprayed.

Separation degree between multiple fins 160 can be along with fin 160 be closer to flow path The outlet 135 of 161 and increase.That is, along with fin 160 is closer to exhaust flow path 161 Outlet 135, the width in exhaust flow path 161 can increase.

Multiple fins 160 can include first surface 162 and second surface 163.

First surface 162 can be towards the outer surface of inner frame 131, and second surface 163 can face Inner surface to outside framework 132.First surface 162 can include being placed on first surface 162 Starting point M on top.Second surface 163 can include the top being placed on second surface 163 On starting point N.Starting point N of second surface 163 can be with the starting point of first surface 162 M constitutes the entrance 137 in exhaust flow path 161 together.

The first surface 162 of multiple fins 160 also can be connected to the outer surface of jut 133a. That is, starting point M of first surface 162 can be connected to jut 133a towards inner frame 131 The protruding outer surface in outside.

Multiple fins 160 may also include starting point M of first surface 162 and second surface The connecting portion 164 that starting point N of 163 connects.Multiple to connecting portion 164 will be provided after a while The description of shape.

Multiple fins 160 can have curved surface.

Impeller guard shield 120 can include guide portion 122.Specifically, guide portion 122 will be through leaf The air of the flow path 115 of wheel 110 is directed to the entrance 137 in exhaust flow path 161.

Guide portion 122 can have curved surface by such mode, i.e. through flowing road Before the air in footpath 115 is incorporated in the entrance 137 in exhaust flow path 161, can prevent from wearing Cross the air of flow path 115 to be retained in and be formed between impeller 110 and backward channel 130 In space 191.Guide portion 122 can have the bending protruding towards the outside of impeller guard shield 120 Surface.

Guide portion 122 can have the curved surface that radius of curvature is 1mm or bigger.

Air through the flow path 115 being arranged at impeller 110 introduces along guide portion 122 In the exhaust flow path 161 being arranged on backward channel 130.

The moving direction of air can change according to guide portion 122.Specifically, through perforate 114 And the air being incorporated in impeller 110 moves in the horizontal direction along flow path 115, and Through air and guide portion 122 collision of flow path 115 in the vertical direction towards discharge Flow path 161 moves.

One end of the faced downwards of guide portion 122 can be connected to outside framework 132.

Sucking unit 100 and may also include motor 140, motor 140 provides for wheel rotor 110 Driving force.

Motor 140 can include BLDC motor, DC motor and AC motor.

Motor 140 may be provided in backward channel 130.Specifically, motor 140 may be provided at In inner frame 131.

Motor shaft perforation 136 can be formed with so that electricity in the installation portion 133 of inner frame 131 One end of arbor 141 may be connected to be placed on the second of the impeller 110 on the top of inner frame 131 Plate 112.

Via the internal flow path 41 formed in the housing 40 around suction unit 100, It is ejected into the air of outlet 135 of the end being formed at exhaust flow path 161 by being formed Outlet 42 in the bottom sucking unit 100 is discharged.The air discharged by outlet 42 Discharge by exhaust portion 15 via exhaust flow path 16.Here, exhaust flow path 16 refers to The flow path of exhaust portion 15 is arrived at the air discharged from the outlet 42 sucking unit 100.

It is formed at collecting unit of dust 20 and the space sucked between unit 100 may make up aerofluxus flowing road The part in footpath 16.

Exhaust flow path 16 is flexible at least one times.Exhaust flow path 16 can include from suction Enter the outlet 42 of unit 100 to the space between collecting unit of dust 20 and suction unit 100 First flow path 16a, extend from the first flow path 16a and be formed at collecting unit of dust 20 with Suck second flow path 16b between unit 100, and by second flow path 16b with The 3rd flow path 16c that exhaust portion 15 connects.

Exhaust flow path 16 can be provided with discharge filter 18 with from collecting unit of dust 20 Separate the foreign body do not removed.Discharge filter 18 may be installed the first flow path 16a or second On flow path 16b.This is because, if discharge filter 18 is arranged on the first flow path On 16a or second flow path 16b, then may insure that from discharge filter 18 to exhaust portion 15 Enough distances so that air through discharge filter 18 time produce noise by fully Exhaust portion 15 air-out can be passed through after reduction.Additionally, discharge filter 18 is arranged on tool Have in the first flow path 16a or second flow path 16b of the relatively large area of section, Make the area that can ensure that discharge filter 18 abundant, therefore can reduce at air through aerofluxus The pressure loss produced during filter 18.

The basal surface of main body 10 can be formed and can beat opening/closing by door (not shown) Opening (not shown) so that the replacing of discharge filter 18 can be easily performed.

Figure 22 is the amplification view of another part sucking unit of the cleaning equipment of Figure 15.

As shown in Figure 22, by starting point M being connected to inner frame 131 of first surface 162 The straight line A connected with starting point N being connected to outside framework 132 of second surface 163 can be relative Inclination between the axial direction X-shaped of impeller 110 becomes about 5 ° and 85 °.

Additionally, as it has been described above, guide portion 122 can have curved surface, it is towards impeller guard shield The outside of 120 is protruding and has the radius of curvature of 1mm or bigger.Guide portion 122 also can have There is quadratic surface (quadratic curved surface).

Figure 23 arrangement illustrated Figure 15 cleaning equipment inner frame and outside framework between multiple A part for fin, and Figure 24 A to Figure 24 P is schematically illustrated shown in Figure 23 The side view of the various shape of the connecting portion of multiple fins.

As shown in Figure 23 to Figure 24 P, the connecting portion 164 of multiple fins 160 can have multiple One in shape.

Connecting portion 164 can include at least one in curved surface and flat surfaces.

Connecting portion 164 can have the curved surface having different curvature.

Connecting portion 164 can have the curved surface having flex point.

Connecting portion 164 can include the flat surfaces with constant gradient.

Connecting portion 164 can include multiple flat surfaces with different gradient.That is, connection is constituted Multiple flat surfaces in portion 164 can be bending.

Connecting portion 164 can include curved surface and flat surfaces simultaneously.

Starting point N of second surface 163 than starting point M of first surface 162 towards impeller Guard shield 120 upwardly extends farther.That is, starting point N of second surface 163 can be at impeller 110 Axial direction X on be formed at position more higher than starting point M of first surface 162.

Alternately, starting point N of second surface 163 upwards can be prolonged towards impeller guard shield 120 Extend in the level identical with starting point M of first surface 162.That is, second surface 163 Starting point M of starting point N and first surface 162 can be on the axial direction X of impeller 110 There is identical height.

Connecting portion 164 can include summit S, summit S than first surface 162 starting point M and At least one in starting point N of second surface 163 upwardly extends towards impeller guard shield 120 Farther.Summit S upwards prolongs towards impeller guard shield 120 than starting point M of first surface 162 Project farther.

Figure 25 be Figure 15 cleaning equipment suck unit side view, and Figure 26 be with The acclivitous multiple fins in side that the rotation direction of impeller of the cleaning equipment of Figure 15 is identical Amplification view.Figure 27 is contrary with the rotation direction of the impeller of the cleaning equipment of Figure 15 The amplification view of the acclivitous multiple fins in side.

As shown in Figure 25 to Figure 27, in the level of the axial direction X being perpendicular to impeller 110 On the Y of direction cut backward channel 130 section Q in, by first surface 162 face top The straight line B that is connected of the top 163b facing top of top 162b and second surface 163 and The straight line C that the center O of backward channel 130 is connected with the top 162b of first surface 162 Between angle, θ can be between about 0 ° and 80 °.Specifically, when impeller 110 in a first direction When rotating on H, by the top 163b of the top 162b of first surface 162 Yu second surface 163 The straight line B connected can in a first direction on H relative to by the center O of backward channel 130 and the Angle between the straight line C inclination about 0 ° and 80 ° that the top 162b on one surface 162 connects. Additionally, when rotating on impeller 110 H in a first direction, by the top 162b of first surface 162 The straight line B being connected with the top 163b of second surface 163 can be relative to inciting somebody to action in second direction I The straight line C that the center C of backward channel 130 is connected with the top 162b of first surface 162 inclines The tiltedly angle between about 0 ° and 80 °.

Horizontal direction Y of axial direction X being perpendicular to impeller 110 is cut backward channel In the section Q of 130, the top 162b facing top of first surface 162 and second surface The top 163b facing top of 163 can be connected to each other with straight line or curve.

Figure 28 is the cooling structure of the cleaning equipment of the Figure 15 according to first embodiment of the invention Axonometric chart.Hereinafter, Figure 28 to Figure 33 illustrates the suction unit 100 being reversed.Cause This, the top of backward channel 130 represents the entrance 137 in exhaust flow path 161, and returns The bottom returning passage 130 represents the outlet 135 in exhaust flow path 161.

As shown in Figure 28, suck unit 100 and may also include PCB 210 and bearing unit 200.

PCB 210 can be placed on backward channel 130 times on the axial direction X of impeller 110 Portion.That is, PCB 210 can be placed in the bottom of backward channel 130 with neighbouring exhaust flow path The outlet 135 of 161.PCB 210 can be placed in the bottom of the inner side of backward channel 130 not hinder Plug exhaust flow path 161.

Bearing unit 200 can be placed on PCB 210 times on the axial direction X of impeller 110 Portion.Bearing unit 200 can support the motor 140 being arranged in backward channel 130 and be arranged on The PCB 210 of the bottom of backward channel 130.

Bearing unit 200 can be connected at least one projection being formed in backward channel 130 (220, see Figure 18).

This at least one projection 220 may be formed in backward channel 130 to be placed on motor 140 Outside.Additionally, at least one projection 220 can be integrally formed with backward channel 130.

Bearing unit 200 can include metal material.

Bearing unit 200 can include main body 201 and fin 202.

Main body 201 may be provided at the bottom of the inner side of backward channel 130 and is arranged on return with supporting Motor 140 and PCB 210 in passage 130.Main body 201 may be provided at backward channel 130 The bottom of inner side not block exhaust flow path 161.

Fin 202 may be formed at the end of bearing unit 200 with neighbouring exhaust flow path The outlet 135 of 161.Fin 202 may be formed at the edge of main body 201.Fin 202 It is formed as protruding outside towards main body 201 in radial directions.

Fin 202 may be provided at the bottom of the outlet 135 in exhaust flow path 161 not do Disturb the air-flow of the outlet 135 being discharged into exhaust flow path 161.

The heat produced in PCB 210 and motor 140 can be transferred to heat radiation via main body 201 Sheet 202.When being discharged into the air of outlet 135 in exhaust flow path 161 through fin 202 Time, the air of the outlet 135 being discharged into exhaust flow path 161 can cool down and be transferred to fin The heat of 202.

Additionally, fin 202 can be used for extending on the axial direction X of impeller 110 discharging stream Dynamic path 161, therefore can help to increase the inhalation power sucking unit 100.

Fin 202 can be integrally formed with main body 201.

Fin 202 can be arranged on exhaust flow according to the caloric value of PCB 210 and motor 140 All or part of place of the outlet 135 in path 161.

Figure 29 is the cooling structure of the cleaning equipment of the Figure 15 according to second embodiment of the invention Axonometric chart, and Figure 30 is the sectional view of the cooling structure shown in Figure 29.Hereinafter, Describe omitting the redundancy relevant with Figure 28.

As shown in Figure 29 and Figure 30, bearing unit 200 may be provided at the bottom of PCB 210 Not close the outlet 135 in exhaust flow path 161.

The main body 201 of bearing unit 200 can have round-shaped, and can be along main body 201 Periphery formed fin 202.Fin 202 may be provided at the complete of exhaust flow path 161 Portion exports at 135.That is, fin 202 may be provided at the outlet 135 in exhaust flow path 161 Bottom.

Along with the quantity of fin 202 increases, cooling effectiveness can be improved.

Figure 31 is the cooling structure of the cleaning equipment of the Figure 15 according to third embodiment of the invention Sectional view.To omit and Figure 28 to Figure 30 repetitive description.

As shown in Figure 31, to support electricity during bearing unit 200 may be formed at backward channel 130 Machine 140 and PCB 210.That is, from the main body 201 of bearing unit 200 towards main body 201 Fin 202 protruding outside can face out the inner surface of framework 132.Fin 202 can connect Touch or be connected to the inner surface of outside framework 132.

Bearing unit 200 can be placed in the bottom of PCB 210 with supporting motor 140 and PCB 210.In this case, the outside framework 132 of backward channel 130 can be towards backward channel 130 Bottom extend further so that fin 202 can contact with the inner surface of outside framework 132. That is, one end towards the bottom of backward channel 130 of outside framework 132 may be provided at and support list On unit's 200 identical lines.

Figure 32 is the cooling structure of the cleaning equipment of the Figure 15 according to four embodiment of the invention Sectional view.To omit and Figure 28 to Figure 31 repetitive description.

As shown in Figure 32, during bearing unit 200 may be housed in backward channel 130.Supporting is single Unit 200 can be placed in the bottom of the inner side of backward channel 130 with supporting motor 140.PCB 210 May be provided at the bottom of bearing unit 200.

From the main body 201 of bearing unit 200 towards the fin 202 protruding outside of main body 201 The inner surface of framework 132 can be faced out.Fin 202 can contact or be connected to outside framework 132 Inner surface.

The outside framework 132 of backward channel 130 can prolong further towards the bottom of backward channel 130 Stretch.Specifically, one end towards the bottom of backward channel 130 of outside framework 132 may be provided at On the line identical with PCB 210.

Figure 33 is the cooling structure of the cleaning equipment of the Figure 15 according to fifth embodiment of the invention Sectional view.To omit and Figure 28 to Figure 32 repetitive description.

As shown in Figure 33, multiple bearing units 200 may be provided at the bottom of backward channel 130. Specifically, multiple bearing units 200 can be arranged on PCB on the axial direction X of impeller 110 The upper and lower of 210.The fin 202 towards motor 140 of bearing unit 200 can be from Main body 201 extends to face out the inner surface of framework 132.Bearing unit 200 be arranged on PCB It is protruding outside that the fin 202 of the bottom of 210 is formed as towards main body 201.Supporting is single The fin 202 of the bottom being arranged on PCB 210 of unit 200 can be exposed to backward channel 130 Outside.

Figure 34 is the multiple wings in the cleaning equipment of the Figure 15 according to first embodiment of the invention The sectional view of the arrangement of sheet, and Figure 35 is Figure 34 broken section in the horizontal direction Figure.Figure 35 to Figure 37 is shown in horizontal direction Y of the axial direction X being perpendicular to impeller 110 The part of the section Q of upper cutting backward channel 130.

As shown in Figure 34 and Figure 35, multiple fins 160 may be provided at backward channel 130 Between inner frame 131 and outside framework 132.Multiple fins 160 may be provided at inner frame 131 with Formed with the axial direction relative to impeller 110 between outside framework 132.

Multiple fins 160 may be provided between inner frame 131 and outside framework 132 with outside framework 132 spaced apart predetermined gaps.Specifically, the first face 162 of multiple fins 160 can be connected to The outer surface of inner frame 131, and the second face 163 of multiple fin 160 can be with outside framework 132 The spaced apart predetermined gap of inner surface.

The second surface 163 of multiple fins 160 can be at the entrance 137 in exhaust flow path 161 With outlet 135 whole go up the most spaced apart with the inner surface of outside framework 132.

Alternately, the second surface 163 of multiple fins 160 can be in exhaust flow path 161 Entrance 137 and outlet 135 part on spaced apart with the inner surface of outside framework 132.Along with Multiple fins 160 closer to the outlet 135 in exhaust flow path 161, multiple fins 160 Second surface 163 can be spaced apart with the inner surface of outside framework 132.That is, adjacent to exhaust flow road The second surface 163 of the entrance 137 in footpath 161 can be connected to the inner surface of outside framework 132, with And the second surface 163 of the outlet 135 in neighbouring exhaust flow path 161 can be with outside framework 132 The spaced apart predetermined gap of inner surface.

Separation degree between inner surface and the second surface 163 of outside framework 132 can be at impeller 110 Axial direction X on different.

Multiple fins 160 can be integrally formed with inner frame 131.

Along with the inner surface of second surface 163 with outside framework 132 is spaced farther apart from, can reduce There is the air peeling in exhaust flow path 161, therefore can improve suction unit 100 Inhalation power.

Figure 36 is the multiple wings in the cleaning equipment of the Figure 15 according to second embodiment of the invention The sectional view of the arrangement of sheet.

As shown in Figure 36, multiple fins 160 may be provided at inner frame 131 and outside framework 132 Between to form the inclination of axial direction X relative to impeller 110.

Multiple fins 160 may be provided between inner frame 131 and outside framework 132 with inner frame 131 is spaced apart.Specifically, the second face 163 of multiple fins 160 can be connected to outside framework 132 Inner surface, and the first surface 162 of multiple fin 160 can be with the outer surface of outside framework 132 Spaced apart.

The first surface 162 of multiple fins 160 can be at the entrance 137 in exhaust flow path 161 With outlet 135 whole go up the most spaced apart with the outer surface of inner frame 31.

Alternately, the first surface 162 of multiple fins 160 can be in exhaust flow path 161 Entrance 137 and outlet 135 part on spaced apart with the outer surface of inner frame 31.

Separation degree between outer surface and the first surface 162 of inner frame 131 can be at impeller 110 Axial direction X on different.

Multiple fins 160 can be integrally formed with outside framework 132.

Figure 37 is the multiple wings in the cleaning equipment of the Figure 15 according to third embodiment of the invention The sectional view of the arrangement of sheet.

As shown in Figure 37, multiple fins 160 can include being arranged on inner frame 131 and outside framework The first fin 165 and the second fin 166 between 132.First fin 165 can be connected to inside casing The outer surface of frame 131, and the second fin 166 can be connected to the inner surface of outside framework 132.

One end of the inner surface facing out framework 132 of the first fin 165 can be with the second fin The spaced apart predetermined gap in one end towards the outer surface of inner frame 131 of 166.

Can alternately place the first fin 165 and the second fin 166.

Horizontal direction Y of axial direction X being perpendicular to impeller 110 is cut backward channel In the section Q of 130, one end of the outer surface towards inner frame 131 of the second fin 166 is not It is placed on one end and the backward channel of the inner surface facing out framework 132 by the first fin 165 On the straight line J that the center O of 130 connects.

Figure 38 is the section view sucking unit of the cleaning equipment according to a further embodiment of this invention Figure.To omit and Figure 15 to Figure 36 repetitive description.

As shown in Figure 38, backward channel 130 can be placed in the bottom of impeller 110, Yi Ji Installation portion 133 can be formed on the top surface of inner frame 131, installation portion 133 is installed leaf Wheel 110.

Installation portion 133 can have flat surfaces.That is, the edge shape along installation portion 133 can be omitted The jut (133a sees Figure 20) become.

Figure 39 is the sectional view of the main body of the cleaning equipment shown in diagram Figure 38, and Figure 40 It it is the axonometric chart sucking unit of the cleaning equipment of Figure 38.Figure 41 is the cleaning equipment of Figure 38 Suck unit exploded perspective view, and Figure 42 be Figure 38 cleaning equipment suck unit The amplification stereogram of part.Figure 43 is the sectional view sucking unit of the cleaning equipment of Figure 38. Hereinafter, will omit and Figure 15 to Figure 38 repetitive description.

As shown in Figure 39 to Figure 43, the suction unit 100a of cleaning equipment 1a can include leaf Wheel 110a, backward channel 130a and guard shield 170.

The top surface of guard shield 170 can be formed inlet baffle 121a.Rotating impeller 110a and backward channel 130a may be provided at the inner side of guard shield 170.

Backward channel 130a may be provided at the downside of impeller 110a.

Backward channel 130a may be coupled directly to impeller 110a so that through the sky of impeller 110a Gas can be introduced directly in backward channel 130a.

Suck unit 100a and may also include motor 140a and electric machine casing 150.

Motor 140a provides and is used for the driving force of wheel rotor 110a and is arranged on electric machine casing In 150.Electric machine casing 150 can be placed in the bottom of backward channel 130a, can be connected to guard shield 170 and can to limit the receiving that can be accommodated therein by impeller 110a and backward channel 130a empty Between 180.

At least one outlet 135a can be formed at electric machine casing 150.This at least one outlet 135a may be formed at the bottom of electric machine casing 150.But, the position of outlet 135a is not limited to This.

Multiple fin 160a can be arranged on backward channel along the outer periphery surface of backward channel 130a Between 130a and guard shield 170.Multiple fin 160a can be relative to the axial direction of impeller 110a X-shaped becomes.Specifically, when impeller 110a rotates in second direction I, multiple fins 160a can on the first direction H contrary with second direction I axial relative to impeller 110a Direction X tilts.

Multiple fin 160a can be longitudinally formed on the axial direction X of impeller 110a with Inclination is formed on two direction I.

Multiple fin 160a can be fixed to extension 151, and extension 151 extends to electric machine casing The outside of 150 is with towards backward channel 130a.Specifically, multiple fin 160a can be fixed to prolong Extending portion 151 so that the bottom of multiple fin 160a can be placed in backward channel 130a and extension Between portion 151.

Multiple fin 160a can be on the first direction H identical with the rotation direction of impeller 110a Form protruding curved surface.

Multiple fin 160a can include first surface 190 and second surface 199.First surface 190 The outer surface of backward channel 130a can be connected to, and second surface 199 can be connected to guard shield 170 Inner surface.The top 199a of second surface 199 is than the top 190a of first surface 190 Upwardly extend farther.

It is incorporated in inlet baffle 121a and through being arranged on the flow path at impeller 110a The air of 115a moves to electricity along the exhaust flow path 161a formed by multiple fin 160a In casing body 150, and cool down the motor 140a in electric machine casing 150.Hereafter, air leads to Cross be arranged at electric machine casing 150 at least one outlet 135a spray in radial directions.

Guard shield 170 can include guide portion 122a, and guide portion 122a is by the stream through impeller 110a The air of dynamic path 115a is directed to exhaust flow path 161a.

Figure 44 is the amplification view of the part sucking unit of the cleaning equipment of Figure 38.

As shown in Figure 44, by starting point M of the first surface 190 of multiple fin 160a with The straight line A that starting point N of the second surface 199 of multiple fin 160a connects can be relative to leaf The inclination of the angle between the axial direction X-shaped one-tenth about 5 ° and 85 ° of wheel 110a.

Figure 45 is the amplification view of the part of multiple fins of the cleaning equipment of Figure 38.

As shown in Figure 45, in horizontal direction Y of the axial direction X being perpendicular to impeller 110a In the section Q of upper cutting backward channel 130a, by the top facing top in the first face 190 The straight line B that 190b is connected with the top 199b facing top of second surface 199 returns with inciting somebody to action Between the straight line C that the center O of passage 130a and the top 190b of first surface 190 is connected Angle, θ can be between about 0 ° and 80 °.

Figure 46 is such diagram, its illustrate according to embodiment of the present invention by first surface The straight line that starting point M is connected with starting point N of second surface is relative to the axial direction X of impeller Inclination angle and cleaning equipment inhalation power between relation.

In the diagram of Figure 46, when by the first surface 162 of multiple fins 160 or 160a or Starting point M of 190 is initial with the second surface 163 or 199 of multiple fins 160 or 160a Point N connect straight line A relative to impeller 110 or 110a axial direction X-shaped become about 5 ° with During the inclination of the angle between 85 °, the inhalation power sucking unit 100 or 100a increases.

Figure 47 is such diagram, its illustrate according to the embodiment of the present invention be perpendicular to leaf Cut in the section Q of backward channel in horizontal direction Y of the axial direction X of wheel, by first The straight line B that the one end on surface is connected with one end of second surface with by the center of backward channel and the Between angle and the inhalation power of cleaning equipment that the straight line C that the one end on one surface connects is formed Relation.

As shown in the diagram of Figure 47, at the axial direction X being perpendicular to impeller 110 or 110a Horizontal direction Y on cut backward channel 130 or 130a section Q in, by first surface Top 162b or 190b of 162 or 190 and second surface 163 or 199 face top Top 163b or 199b connect straight line B with by the center O of backward channel 130 or 130a Angle between the straight line C being connected with top 162b or 190b of first surface 162 or 190 θ can be between about 0 ° and 80 °.

Additionally, along with by top 162b or 190b facing top of first surface 162 or 190 The straight line B being connected with top 163b or 199b facing top of second surface 163 or 199 With the top 162b by the center O of backward channel 130 or 130a Yu first surface 162 or 190 Or the angle, θ between the straight line C of 190b connection is closer to 0 °, inhalation power and efficiency are excellent 's.

The expression "-" of angle, θ and "+" represent the rotation of angle, θ and impeller 110 or 110a Relation between direction.That is, if by top 162b or 190b of first surface 162 or 190 The straight line B being connected with top 163b or 199b of second surface 163 or 199 is relative to returning Return the center O of passage 130 or 130a and top 162b or 190b of first surface 162 or 190 The straight line C connected is inclined upwardly, then in the side identical with the rotation direction of impeller 110 or 110a With "+" represent.On the other hand, if by the top 162a of first surface 162 or 190 or The straight line B that 190b and top 163b or 199b of second surface 163 or 199 is connected relative to Top 162b by the center O of backward channel 130 or 130a Yu first surface 162 or 190 Or the straight line C that 190b connects is on the direction contrary with the rotation direction of impeller 110 or 110a Tilt, then represent by "-".

Suction unit 100 as above, 100a or 100b can be applicable to cleaning equipment 1,1a Or 1000 and unrelated with its type.That is, suck unit 100 to also apply be applicable to robot cleaner and set Standby, cartridge type cleans equipment or vertical type cleaning equipment.

Although have shown that and describe some embodiments of the disclosure, but those skilled in the art It will be appreciated that embodiment can be repaiied without departing from the principles and spirit of the present invention Changing, the scope of the present invention is defined in claim and equivalent thereof.

Claims

1. cleaning equipment, including:

Suck unit, produce inhalation power to draw air in main body, described suction unit bag Include:

The impeller that can rotate；

Impeller guard shield, has the inlet baffle being formed in described impeller guard shield；And

Backward channel, be connected to described impeller guard shield make described impeller can be contained in described in return Return in passage,

Described backward channel includes:

Inner frame；And

Outside framework, be positioned at the outside of described inner frame with and described inner frame be spaced Open, wherein, between described inner frame and described outside framework, be provided with multiple fin.

Cleaning equipment the most according to claim 1, wherein said backward channel directly couples To described impeller so that the air through described impeller can be incorporated in described backward channel.

Cleaning equipment the most according to claim 1, wherein said multiple fins are relative to institute The axial direction stating impeller is formed.

Cleaning equipment the most according to claim 3, wherein, described impeller is in a first direction Upper rotation, and

The plurality of fin in second direction opposite to the first direction relative to described leaf The axial direction of wheel is formed and.

Cleaning equipment the most according to claim 1, wherein said multiple fins include bending Surface.

Cleaning equipment the most according to claim 1, wherein, the plurality of fin is to each other Separating predetermined gap and form exhaust flow path, the air through described impeller passes through described Exhaust flow path is moved, and

Wherein, described exhaust flow path includes:

Entrance, is formed at the one end towards described impeller in described exhaust flow path； And

Outlet, be formed at the other end in described exhaust flow path with described entrance between Separate, and

The air being incorporated in described exhaust flow path via described entrance sprays via described outlet It is mapped to the outside of described suction unit.

Cleaning equipment the most according to claim 6, wherein said impeller guard shield includes coupling To the guide portion of described outside framework so that the air through described impeller is directed to described entrance, with And

Described guide portion has curved surface.

Cleaning equipment the most according to claim 7, wherein said guide portion has bending table Face, described curved surface protruding towards the outside of described impeller guard shield and have about 1mm or Bigger radius of curvature.

Cleaning equipment the most according to claim 6, wherein said multiple fins include:

First surface, towards the outer surface of described inner frame and include starting point；And

Second surface, towards the inner surface of described outside framework and include together with described starting point Form the starting point of described entrance.

Cleaning equipment the most according to claim 9, wherein, by described first surface The straight line that starting point is connected with the starting point of described second is relative to the axial direction of described impeller The inclination of the angle between forming about 5 ° and 85 °.

11. cleaning equipment according to claim 9, wherein, are being perpendicular to described impeller Axial direction horizontal direction on cut in the section of described backward channel, by described first table The one end towards described impeller guard shield in face and described second surface towards described impeller guard shield The straight line that one end connects with by the center of described backward channel and described first surface towards described Angle, θ between the straight line that one end of impeller guard shield connects is between about 0 ° and 80 °.

12. cleaning equipment according to claim 9, initiateing of wherein said second surface Point prolongs towards described impeller guard shield than the starting point of described first surface and projects farther.

13. cleaning equipment according to claim 9, wherein said multiple fins also include The connecting portion that the starting point of described first surface is connected with the starting point of described second surface, with And

Described connecting portion includes at least one in curved surface and flat surfaces.

14. cleaning equipment according to claim 13, wherein said connecting portion includes than institute State at least one in the starting point of first surface and the starting point of described second surface towards described Impeller guard shield prolongs the summit projected farther.

15. cleaning equipment according to claim 1, wherein said suction unit also includes Motor, described motor is arranged in described backward channel and has the electricity being connected to described impeller Arbor is to provide the driving force for rotating described impeller.

16. cleaning equipment, including:

Sucking unit, generation inhalation power is to draw air in main body, and wherein said suction is single Unit includes:

The impeller that can rotate；

Backward channel, be connected to described impeller guard shield make described impeller can be contained in described in return Return in passage, and described backward channel is directly coupled to described impeller and makes through described impeller Air can be incorporated in described backward channel, wherein,

Described backward channel is coupled to each other by multiple unit that can be separated from one another and is formed.

17. cleaning equipment according to claim 16, wherein said multiple unit can that This separates and is formed with the axial direction relative to described impeller.

18. cleaning equipment according to claim 16, wherein said multiple unit can be In the horizontal direction of the axial direction being perpendicular to described impeller separated from one another.

19. cleaning equipment according to claim 16, wherein said backward channel includes:

Inner frame；

Outside framework, is positioned at the outside of described inner frame with spaced apart with described inner frame；And

Multiple fins, between described inner frame and described outside framework, and

The plurality of unit can in the horizontal direction of axial direction being perpendicular to described impeller that This separates.

20. cleaning equipment according to claim 19, wherein said multiple fins relative to The axial direction of described impeller is formed and tilts and include curved surface.

21. cleaning equipment according to claim 19, wherein said backward channel also includes At least one rotates and stops unit, and described rotation stops unit to make the plurality of unit be coupled to each other.

22. cleaning equipment according to claim 21, at least one rotation resistance wherein said Stop element is formed at the inner side of described backward channel to be spaced apart from each other.

23. cleaning equipment according to claim 21, wherein said multiple unit include:

First module, is located across the upstream side in the direction that the air of described impeller moves；And

Second unit, is located across the downstream in the direction that the air of described impeller moves, and

At least one rotation described stops unit to include, and projection, described projection are positioned at described first list The inner side of in first and described second unit.

24. cleaning equipment according to claim 23, at least one rotation resistance wherein said Stop element also includes fastening part, and described fastening position is in described first module and described second unit In another inner side, and so that described projection can be connected in the way of separating.

25. cleaning equipment, including:

The impeller that can rotate；

Described backward channel is provided with multiple fin with the axial direction relative to described impeller Formed and.

26. cleaning equipment according to claim 25, wherein said multiple fins include curved Curved surface.

27. cleaning equipment according to claim 25, wherein said impeller is in a first direction Upper rotation, and

28. cleaning equipment according to claim 25, wherein said backward channel includes:

Inner frame；And

Outside framework, is positioned at the outside of described inner frame with spaced apart with described inner frame, and

The plurality of fin is arranged between described inner frame and described outside framework.